42319157 has 8 divisors (see below), whose sum is σ = 43799712. Its totient is φ = 40856400.

The previous prime is 42319153. The next prime is 42319187. The reversal of 42319157 is 75191324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42319157 - 2² = 42319153 is a prime.

It is a super-2 number, since 2×42319157² = 3581822098381298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42319153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482 + ... + 9212.

It is an arithmetic number, because the mean of its divisors is an integer number (5474964).

Almost surely, 2^42319157 is an apocalyptic number.

It is an amenable number.

42319157 is a deficient number, since it is larger than the sum of its proper divisors (1480555).

42319157 is a wasteful number, since it uses less digits than its factorization.

42319157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8899.

The product of its digits is 7560, while the sum is 32.

The square root of 42319157 is about 6505.3175940918. The cubic root of 42319157 is about 348.4809184112.

The spelling of 42319157 in words is "forty-two million, three hundred nineteen thousand, one hundred fifty-seven".